C FOUR High-end 4-channel Class AB amplifier

Helix
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€ 1174,00
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Amplifier Type
4 channels
Amplifier Class
AB
RMS Power 4 Ohm
4X150 Watt
RMS Power 2 Ohm
4X220 Watt
RMS Power Dual Mono 4 Ohm
2X440 Watt
Crossover
Yes
S/PDIF Digital Input
No
High Level Input
YES
Signal-to-Noise Ratio
112 dB S/N
Total Harmonic Distortion
0,007 % THD
Size
430 x 240 x 37,1 mm

Helix C FOUR High-end 4-channel Class AB Amplifier


High-end 4-channel amplifier with 150 watts RMS in Class A/B, which has been designed in every detail for maximum sound quality. The Class A driver stage with extremely low noise and extremely low distortion, patented by Audiotec Fischer, drives a total of 32 hand-selected MOSFET power transistors, achieving an incredible damping factor of 1,000 for total control of every speaker.

C FOUR Features

  • Wideband Class AB amplifier with eight MOSFET transistors per channel for exceptional sound quality, ideal for high-resolution audio.
  • Power amplifier driver with extremely low noise and distortion-free in Class A technology
  • Enormous damping factor of 1,000 @ 4 Ohm for perfect speaker control
  • HELIX Digital Input Module (HDM) optionally available to extend the amplifier with two digital optical inputs in SPDIF format
  • Active and integrated crossover with high-pass, low-pass and band-pass
  • Regulated DC / DC switching power supply with Start-Stop function down to 6V supply voltage
  • Microprocessor-based amplifier status monitoring, including temperature control
  • Input Mode switch for flexible input signal routing
  • State-of-the-art BurrBrown D / A converters with 32-bit resolution in combination with the optional HDM 2 module
  • Massive speaker and power terminals plated with 24-carat gold
  • Quad-layer PCB with extra-solid copper traces of 70μ for minimal losses and SMD (Surface Mounted Device) manufacturing technology

Start-Stop Functionality

HELIX C FOUR's switched power supply ensures operation even if the battery voltage drops to 6 Volts during engine cranking.

High-resolution Audio

The amplifier's extremely wide audio bandwidth ensures loss-free reproduction of high-resolution audio data to deliver the best possible sound in studio quality.

Manuale utente

n-20190718103251-ba-helix-c-four.pdf

Helix C FOUR Technical Specifications

  • RMS / max. output power
    • @ 4 Ohm 4 x 150/300 Watt
    • @ 2 Ohm 4 x 220/440 Watt
    • Bridged to 4 Ohm 2 x 440/880 Watt
  • Class AB amplifier technology
  • Inputs
    • 4 x RCA / Cinch
    • 1 x Remote In
  • Optional via HDM module: 2 x SPDIF optical (28 - 96 kHz)
  • RCA / Cinch input sensitivity 1 - 8 Volt
  • RCA / Cinch input impedance 7.5 kOhms
  • Outputs 4 x Speaker output
  • Frequency response 10 Hz - 80,000 Hz
  • High-pass 15 Hz - 4000 Hz adjustable
  • Low-pass 15 Hz - 4000 Hz adjustable
  • Band-pass 15 Hz - 4000 Hz adjustable
  • Subsonic
  • Phase
  • High / low slope 12 dB / oct.
  • Analog input with signal-to-noise ratio 112 dB (weighted to axis)
  • Distortion (THD) <0.007%
  • Damping factor > 1000
  • Operating voltage 9 - 16 Volt (maximum 5 seconds down to 6 Volt)
  • Idle current 2400 mA
  • Fuse 3 x 30 A LP-Mini-fuse (APS)
  • Additional functions Active, adjustable crossover, HDM slot, input mode switch, high-resolution audio, Start-Stop capability
  • Dimensions (H x W x D) 37.1 x 430 x 240 mm / 1.46 x 16.93 x 9.45 "
€ 1174,00 Price incl. VAT